Android(安卓)自定义PopupWindow以及参数传递与返回

在这篇博客之前,还写了一篇关于PopupWindow，那篇主要是关于PopupWindow弹出位置的设置。以及选择PopupWindow布局后的监听。详情看Android popupwindow 示例程序一。接下来这篇主要是讲自定义PopupWindow以及参数传递与返回，我在里面写了一个listview来示例。接下来看代码，都有所注释。

本文项目资源下载:

一、MainActivity

package com.example.popupwimdow;import java.util.ArrayList;import com.example.popupwimdow.TestPopwindow2.OnGetData;import android.os.Bundle;import android.app.Activity;import android.view.Gravity;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.PopupWindow.OnDismissListener;import android.widget.Toast;/** *  * @author mmsx * 博主博客网址: http://blog.csdn.net/qq_16064871 */public class MainActivity extends Activity implements OnClickListener,OnDismissListener {private ArrayList mArrayList = new ArrayList();private TestPopwindow2 mTestPopwindow2 = null;private int mnSeclectItem = 0;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);InitUI();}private void InitUI() {if (mArrayList != null) {mArrayList.clear();for (int i = 0; i < 3; i++) {ItemTest itemTest1 = new ItemTest(R.drawable.bmp1, "图片一");mArrayList.add(itemTest1);ItemTest itemTest2 = new ItemTest(R.drawable.bmp2, "图片二");mArrayList.add(itemTest2);}}// 实例化TestPopwindow2mTestPopwindow2 = new TestPopwindow2(this);// 设置点击其他位置mTestPopwindow2消失mTestPopwindow2.setOnDismissListener(this);Button buttonTest2 = (Button) findViewById(R.id.buttonTest2);buttonTest2.setOnClickListener(this);}private void OnPopwindowTest2() {if (mTestPopwindow2 == null)return;//回到接受mTestPopwindow2.setOnData(new OnGetData() {//记录上一次选中的item@Overridepublic int onSeclectItem() {return mnSeclectItem;}//回调接受函数@Overridepublic void onDataCallBack(int nSectlect,ArrayList mArrayList) {Toast.makeText(getApplicationContext(),"listview 的点击" + String.valueOf(nSectlect),Toast.LENGTH_SHORT).show();mnSeclectItem = nSectlect;}//传递数据源过去@Overridepublic ArrayList onArrayList() {return mArrayList;}});// location获得控件的位置int[] location = new int[2];View v = findViewById(R.id.buttonTest2);if (v != null)v.getLocationOnScreen(location); // 控件在屏幕的位置mTestPopwindow2.setAnimationStyle(R.style.AppBaseTheme);// mTestPopwindow2弹出在某控件(button)的下面mTestPopwindow2.showAtLocation(v, Gravity.TOP | Gravity.LEFT,location[0] - v.getWidth(), location[1] + v.getHeight());}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.buttonTest2:OnPopwindowTest2();break;default:break;}}// 点击其他地方消失@Overridepublic void onDismiss() {}}

二、TestPopwindow2

package com.example.popupwimdow;import java.util.ArrayList;import android.app.ActionBar.LayoutParams;import android.app.Activity;import android.content.Context;import android.graphics.drawable.BitmapDrawable;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.PopupWindow;import android.widget.TextView;/** * 自定义TestPopwindow2 * @author mmsx * 博主博客网址: http://blog.csdn.net/qq_16064871 */public class TestPopwindow2 extends PopupWindow implements OnItemClickListener{// 根视图private View mRootView;private LayoutInflater mInflater;// ArrayList数组，listview原始数据private ArrayList mArrayList;// 数据接口OnGetData mOnGetData;// listview适配器SelfTypeAdapt mSelfTypeAdapt;private int mnSeclectItem = 0;public TestPopwindow2(Activity context) {super(context);InitData(context);InitUI();}// 数据接口设置,数据源接口传入public void setOnData(OnGetData sd) {mOnGetData = sd;mArrayList = new ArrayList();if (mOnGetData != null) {mArrayList = mOnGetData.onArrayList();mnSeclectItem = mOnGetData.onSeclectItem();}}// 数据接口抽象方法public interface OnGetData {abstract ArrayList onArrayList();abstract int onSeclectItem();abstract void onDataCallBack(int nSectlect,ArrayList mArrayList);}private void InitData(Context context) {mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);mRootView = mInflater.inflate(R.layout.test_popwindow_2, null);setContentView(mRootView);this.setWidth(LayoutParams.FILL_PARENT);this.setHeight(LayoutParams.WRAP_CONTENT);// 设置PopUpWindow弹出的相关属性setTouchable(true);setOutsideTouchable(true);setFocusable(true);setBackgroundDrawable(new BitmapDrawable(context.getResources()));update();getContentView().setFocusableInTouchMode(true);getContentView().setFocusable(true);setAnimationStyle(R.style.AppBaseTheme);}private void InitUI() {ListView listView = (ListView) mRootView.findViewById(R.id.listView1);mSelfTypeAdapt = new SelfTypeAdapt(mRootView.getContext());listView.setAdapter(mSelfTypeAdapt);listView.setOnItemClickListener(this);}public class SelfTypeAdapt extends BaseAdapter {private Context mContext;private LayoutInflater mLayoutInflater;public SelfTypeAdapt(Context context) {mContext = context;mLayoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);}@Overridepublic int getCount() {return mArrayList == null ? 0 : mArrayList.size();}@Overridepublic Object getItem(int position) {return position;}@Overridepublic long getItemId(int position) {return 0;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {ViewHolder viewHolder = null;if (convertView == null) {viewHolder = new ViewHolder();convertView = (LinearLayout) mLayoutInflater.inflate(R.layout.listview_item, null);viewHolder.textView = (TextView) convertView.findViewById(R.id.textViewTest);viewHolder.imageView = (ImageView) convertView.findViewById(R.id.imageView1);convertView.setTag(viewHolder);} else {viewHolder = (ViewHolder) convertView.getTag();}ItemTest itemTest = new ItemTest();itemTest = mArrayList.get(position);viewHolder.textView.setText(itemTest.getImageViewID());viewHolder.imageView.setImageResource(itemTest.getImageViewID());return convertView;}}// 内部类实现，提升listview效率class ViewHolder {public ImageView imageView;public TextView textView;}@Overridepublic void onItemClick(AdapterView<?> parent, View view, int position,long id) {mOnGetData.onDataCallBack(position, mArrayList);    dismiss();}}

三、listview里面的实体类ItemTest

package com.example.popupwimdow;/** * 实体类 ItemTest * @author mmsx * 博主博客网址: http://blog.csdn.net/qq_16064871 */public class ItemTest {private int mImageViewID;private String mstrName;public ItemTest(){}public ItemTest(int ImageViewID, String strName) {this.mImageViewID = ImageViewID;this.mstrName = strName;}public int getImageViewID() {return mImageViewID;}public String getstrName() {return mstrName;}}

四、布局文件

1、activity_main

2、test_popwindow_2

<?xml version="1.0" encoding="UTF-8"?>

3、listview_item

<?xml version="1.0" encoding="utf-8"?>

在这上面主要展示的是点击button后，在这个button下方弹出PopupWindow。PopupWindow的内容是一个listview布局。那listview的数据源使用抽象接口传进去以及返回选择后的listview的item信息。这是一个灵活使用PopupWindow之一，大可以根据实际需要，做出不同的效果。

五、实现效果

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